(a) Simplify as far as possible

(i) a⁵ x a^–3 x a ⁷

(ii) a⁵

----------- <------ a⁵ over a x a⁶

a x a ⁶

(iii) 6(a^3)⁴

------------- <------ 6(a^3)⁴ over 4a⁸

4a⁸

(i) Find f when u = 5 and v = 15

(ii) Find v when f = 6 and u = 18

The volume V of a spherical solid, radius r, is given by the formula

-----1

V = ___ ∏r^3 <------ thats 1 over 3

-----3

(i) Transpose the formula to make r the subject of the formula

(ii) Hence calculate the radius of the sphere when the volume is 8000cm^3

I would appreciate if some could help me on this as well

Thank very very much

steven